> ## Documentation Index
> Fetch the complete documentation index at: https://cerebrium.ai/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Modify App

> Update the configuration or metadata of a specific app.



## OpenAPI

````yaml https://s3.eu-west-1.amazonaws.com/www.cerebrium.ai/openapi_spec.json patch /v2/projects/{project_id}/apps/{app_id}
openapi: 3.0.0
info:
  title: Cerebrium REST API
  description: >-
    REST API for interacting with Cerebrium. This API is mainly used by the
    Cerebrium CLI client, please run `pip install cerebrium` to install it.
  version: 1.0.0
servers:
  - url: https://rest.cerebrium.ai
security: []
paths:
  /v2/projects/{project_id}/apps/{app_id}:
    patch:
      tags:
        - Apps
      summary: Modify App
      description: Update the configuration or metadata of a specific app.
      parameters:
        - name: project_id
          in: path
          required: true
          schema:
            type: string
        - name: app_id
          in: path
          required: true
          schema:
            type: string
      requestBody:
        content:
          application/json:
            schema:
              properties:
                compute:
                  description: >-
                    Compute type. Valid values: ADA_L4, ADA_L40, AMPERE_A10,
                    CPU, INF2, TRN1, TURING_T4.
                  type: string
                cooldownPeriodSeconds:
                  description: 'Cooldown period in seconds. Range: 1-3600.'
                  type: integer
                cpu:
                  description: 'CPU allocation as a string value. Range: 0-100.'
                  type: string
                gpuCount:
                  description: 'Number of GPUs allocated. Range: 0-8.'
                  type: integer
                maxReplicaCount:
                  description: Maximum number of replicas. Must be >= 1.
                  type: integer
                memory:
                  description: 'Memory allocation as a string value. Range: 0-192.'
                  type: string
                minReplicaCount:
                  description: Minimum number of replicas. Must be >= 0.
                  type: integer
                replicaConcurrency:
                  description: Maximum concurrency per replica. Must be >= 1.
                  type: integer
                responseGracePeriodSeconds:
                  description: 'Response grace period in seconds. Range: 1-3600.'
                  type: integer
              type: object
      responses:
        '200':
          description: OK
      security:
        - BearerAuth: []
components:
  securitySchemes:
    BearerAuth:
      type: http
      scheme: bearer
      description: >-
        Service Account Token authentication. To authenticate API requests:


        1. **Create a Service Account Token:**
           - Go to the [Cerebrium Dashboard](https://dashboard.cerebrium.ai/) and open the **API Keys** page
           - Click **Create Service Account**, name it (e.g., "GitHub Actions CI/CD"), choose an expiry date, and click **Create**
           - **Copy the token** generated for the desired service account

        2. **Use the Token:**
           Include the service account token in the Authorization header of API requests:
           `Authorization: Bearer <your-service-account-token>`

        3. **Best Practices:**
           - Create separate service accounts for different environments (dev, staging, prod)
           - Store tokens securely as secrets in consuming applications or workflows
           - Set appropriate expiry dates and rotate tokens regularly
           - Never commit tokens to source control

        For CI/CD integration examples, see the [CI/CD
        documentation](https://docs.cerebrium.ai/cerebrium/deployments/ci-cd).

````